106 best open-source tools

Refreshingly simple data-driven game engine built in Rust

Position #21 of 74 in Games · 12 alternatives · Facts on record: 2 of 5 · live ✓ · source

AI Agent Server for the Enterprise

Position #20 of 77 in Dev Tools · 4 alternatives · Facts on record: 2 of 5 · live ✓ · source

Free 2D game engine based on web technologies with visual tools

Position #23 of 74 in Games · 12 alternatives · Facts on record: 4 of 5 · live ✓ · platforms · docs · source

Open-source AI platform for unified conversations

Position #25 of 77 in AI Agents · 7 alternatives · Facts on record: 3 of 5 · live ✓ · docs · source

Agentic GenBI for humans and AI agents

Position #26 of 77 in AI Agents · Facts on record: 4 of 5 · live ✓ · pricing page · docs · source

Free community-powered AI generation service

Position #31 of 76 in AI Image · 11 alternatives · Facts on record: 3 of 5 · live ✓ · platforms · source

Dead simple open-source 2D game engine for Go

Position #25 of 74 in Games · 12 alternatives · Facts on record: 1 of 5 · live ✓

Open-source generative audio tools by musicians

Position #30 of 77 in AI Audio & Video · Facts on record: 1 of 5 · live ✓

Applied AI lab for sovereign agentic systems

Position #30 of 77 in AI Agents · 12 alternatives · Facts on record: 1 of 5 · live ✓

Simple and easy-to-use library to enjoy videogames programming

Position #29 of 74 in Games · 1 alternative · Facts on record: 2 of 5 · live ✓ · source

Open-source framework for building cognitive AI agent architectures

Position #27 of 77 in Dev Tools · 12 alternatives · Facts on record: 3 of 5 · live ✓ · docs · source

Spaced-repetition flashcards that make memory a choice

Position #43 of 78 in Education · 2 alternatives · Facts on record: 4 of 5 · live ✓ · platforms · docs · source

The opinionated code formatter that ended style debates

Position #28 of 77 in Dev Tools · 1 alternative · Facts on record: 3 of 5 · live ✓ · docs · source

Free open video compression for everyone

Position #38 of 77 in AI Audio & Video · 1 alternative · Facts on record: 1 of 5 · live ✓

Lovely HTML5 danmaku video player

Position #39 of 72 in Other · 2 alternatives · Facts on record: 2 of 5 · live ✓ · source

Virtual whiteboard for hand-drawn style diagrams

Position #39 of 77 in Productivity · 3 alternatives · Facts on record: 2 of 5 · live ✓ · platforms

Open platform for cloud coding agents

Position #33 of 77 in Dev Tools · Facts on record: 4 of 5 · live ✓ · pricing page · docs · source

Free open-source no-code game engine for 2D, 3D and multiplayer games

Position #36 of 74 in Games · 12 alternatives · Facts on record: 2 of 5 · live ✓ · platforms

Interactive neural network tinkering in your browser

Position #48 of 78 in Education · 5 alternatives · Facts on record: 1 of 5 · live ✓

No-code platform to build AI agents and apps with your data

Position #35 of 77 in AI Agents · 7 alternatives · Facts on record: 2 of 5 · live ✓ · source

Reliable end-to-end testing across Chromium, Firefox and WebKit

Position #36 of 77 in Dev Tools · 6 alternatives · Facts on record: 2 of 5 · live ✓ · source

Professional 8K video editing for Linux

Position #44 of 77 in AI Audio & Video · 12 alternatives · Facts on record: 2 of 5 · live ✓ · platforms

Privacy-first analytics you can trust

Position #50 of 77 in SaaS · 5 alternatives · Facts on record: 2 of 5 · live ✓ · pricing page

Cross-platform Haxe graphics engine for high-performance games

Position #39 of 74 in Games · 12 alternatives · Facts on record: 3 of 5 · live ✓ · docs · source